JPH051909Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to the improvement of connectors for electrically connecting circuits or devices, particularly connectors for printed circuit boards.

(Prior Art) Connectors have been commonly used as means for electrically connecting circuits or devices, and for ease of removal. Some of these connectors are mounted directly on printed circuit boards. In this type of connector, the tine part is inserted into a hole drilled in a printed circuit board, etc., and is soldered to be fixed to the board and electrically connected to the circuit on the board. There are two types: a soldered type and a surface mount type.

(Problem to be solved by the invention) These two types of connectors are designed and manufactured separately, but if there is a connector that can be used for both of these mounting methods, fewer types will be manufactured.
Unit price will be reduced. Furthermore, when assembling circuits or equipment, the number of types of parts to be managed can be reduced if they can be used for multiple purposes.

Therefore, the purpose of this invention is to provide a connector that has a shape suitable for surface mounting, which allows for sufficiently strong connections in this case, and also has a shape that is suitable for conventional soldering mounting. shall be.

(Means for Solving the Problems) The connector of the present invention includes a contact having a housing, a contact portion housed in the housing and making contact with a mating connector, and a tine portion protruding from the housing and soldered to a substrate. The contact is integrally formed by punching out a metal plate so that the contact portion and the tine portion are substantially perpendicular to each other, and the tine portion can be inserted into the sheared surface of the tine portion. A recess approximately corresponding to the board thickness of the board is formed from the housing side, and a mounting surface formed by the sheared surface continuous with the recess is chamfered on at least one of both side edges thereof, and the position of the recess is The present invention is characterized in that surface mounting is possible on the substrate on which a wiring pattern is formed, and that the tine portion can be used for both surface mounting and liquid immersion mounting.

(Function) In the present invention, by making the tine portion protrude outward along one outer surface of the housing, it becomes possible to support both surface mounting and liquid immersion mounting (soldering type mounting). In addition, by providing the above recess,
In surface mounting, a solder fillet is formed in the recess to increase the soldering strength, and in immersion mounting, the flexibility of the tine part is improved so that the tine part is soldered when inserted into and removed from the board. This reduces the stress applied to the parts, prevents damage to the tines and solder fillets, and improves reliability.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the connector of the present invention. This connector 1 is composed of a substantially box-shaped housing 2 and contacts 3. The contact 3 has a tine portion 5 that protrudes outward along the outer surface 4 of the housing 2, and a contact portion 15 that is provided substantially orthogonally to the tine portion and makes contact with a mating connector. . Further, a recess 6 is provided in a portion of the protruding portion of the tine portion 5 that faces in the same direction as the outer surface 4 and is close to the housing 2 . The contact portion 15 is disposed within the connection portion 7 of the connector 1 and is formed to be electrically connected to an external connector.

The tine portion 5 and the contact portion 15 of the contact 3 are integrally formed by punching out a metal plate, and the sheared surface of the tine portion 5 is used as the mounting surface to the substrate.

FIG. 2 shows an example in which this connector 1 is surface mounted. The connector 1 is connected to the outer surface 4 of the housing 2.
It is placed on the substrate 8 with its side facing down, and the substrate 8 side of the tine portion 5 is joined to the wiring pattern 9 by solder. A solder fillet 10 is formed in the recess 6 to further strengthen the solder joint.

FIG. 3 is an enlarged view of a part of the surface-mounted tine section. Since the tine portion 5 is provided with a recess 6, the solder fillet 1 is inserted into the recess 6.
0 is formed, making the solder joint stronger compared to a tine portion without a recess.

FIG. 4 is a cross-sectional view of the surface-mounted tine section viewed from the protruding tip side. Solder fillets 10 are also formed on both sides of the tine portion and are soldered to the wiring pattern 9. As shown in FIG. 4B, the print pattern 9 of the tine portion 5
Even if the surface in contact with the fourth
If at least a portion of the ridges on both sides of the surface of the tine portion 5 in contact with the wiring pattern 9 are chamfered as shown in Figure A, the area of the tine portion in contact with the solder increases, increasing the soldering strength. .

FIG. 5 shows an example in which this connector 1 is mounted by liquid immersion. Tine portions 5 are inserted into holes 11 provided in substrate 8 and soldered to wiring patterns 9 on substrate 8. In this case, a solder fillet 10 is formed around the tine portion 5 as shown in the figure.
Since the tine portion 5 is provided with the recessed portion 6, the flexibility of the protruding portion of the tine portion 5 close to the housing 2 is improved, and when the tine portion 5 is inserted into the hole 11 of the substrate 8, This reduces the stress that is applied to the soldered portion of the tine portion when the tine is inserted into the wrong position and removed. Furthermore, the substrate 8
By appropriately combining the thickness of the hole 11, the size of the hole 11, the thickness of the tine portion 5, the position, size, depth, etc. of the recessed portion, it is possible to give a feeling that the device has been inserted securely, and to ensure that the device is inserted properly. It is also possible to create a so-called kink effect, which makes it difficult for the film to come off inadvertently.

6A, 6B, 6b, 6C, 6c, 6D, 6d
The figures show various other embodiments of the invention. Since the connector main body 1a is not an essential part of the present invention, it is simply shown by a dotted line. 6b and 6c are views of the tine portions shown in FIGS. 6B and 6C, respectively, viewed from the direction of the substrate 8, and FIG. 6d is a sectional view of the vicinity of the center of the tine portion shown in FIG. 6D.

Figure 6A shows an example in which a plate material is kink-processed for the tine portion, which prevents the connector 1 from falling off the board 8 during immersion mounting, and also has a shape that can be applied to surface mounting. There is.

Fig. 6B shows an example in which round pins are flattened and used in the tine portion 5, Fig. 6C shows an example in which a plate material is beaded and used, and Fig. 6D shows an example in which a plate material is bent and used. .

Figures 7A, 7B, and 7C are diagrams showing a more specific embodiment of the present invention. In each example,
Corresponding parts are designated by the same reference numerals. The connector 1 of each of these embodiments is provided with five contact portions 15, and therefore also provided with five tine portions 5. The positioning pin 12 is fitted into a positioning hole 13 made in the board during surface mounting, and has the function of regulating the position of the connector 1.

FIG. 7A shows a male connector. Each tine portion 5 alternately protrudes in opposite directions,
Further, a recess 6 is provided. Note that the provision of the recessed portion 6 refers only to the protruding portion of the tine portion 5, and there is no need for the base 14 of the tine portion to be higher than the recessed portion 6. As shown in this figure, it may be formed on the same plane as the recess 6.

FIG. 7B is a diagram showing a female connector connectable to the male connector of FIG. 7A. Each tine section 5
Similar to the connector shown in FIG. 7A, the tine portions 5 alternately protrude in opposite directions and are formed with recesses, and the edges on both sides of the surface where the tine portion 5 contacts the board are chamfered.

FIG. 7C is a diagram showing a female connector that can be connected to the connector of FIG. 7A similarly to FIG. 7B, but the tine portions are not chamfered as described above, and all of the tine portions are in the same direction and are aligned in the same direction. It protrudes in a different direction from the connector in Figure 7B. In this way, along which surface of the housing the tine portions 5 protrude is not limited to a specific direction, but is determined in consideration of how the connector is used.

8A, 8B, and 8C are connection cross-sectional views showing cross-sectional views when both male and female connectors are surface-mounted and connected, respectively. FIGS. 8A and 8B show views in which both the connectors shown in FIGS. 7A and 7B, and FIGS. 7A and 7C are connected, respectively. 8th C
The figure shows a state in which a connector in which connecting portions 7 are arranged in two rows is connected.

(Effects of the invention) In the connector of the invention, the contact portion and the tine portion are integrally formed so as to be substantially perpendicular to each other, and the sheared surface of the tine portion has a recess approximately corresponding to the thickness of the board into which the tine portion is inserted. At least one of both edges of the mounting surface formed from the housing side and continuous with the recess is chamfered to allow surface mounting on a board with a wiring pattern formed up to the position of the recess. Since it has a configuration that can be shared among implementations, it has the following effects.

That is, since the tine portion can be used commonly for surface mounting and liquid immersion mounting, the range of applications is wide and it can be applied to various devices.

The tine section is provided with a recess that approximately corresponds to the thickness of the board to be inserted, so the flexibility of the portion close to the housing is improved, and the tine section is easily inserted into or removed from the board. The stress applied to the part is reduced. It also provides a sense of control when inserted into the board, and makes it difficult to accidentally come out. Further, since the tine portion is provided with a chamfer on the mounting surface for surface mounting, the soldering surface is increased together with the recessed portion, and it is possible to firmly solder to the board.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing one embodiment of the present invention, Fig. 2 is a diagram showing the connector of Fig. 1 in a surface-mounted state, and Fig. 3 is a partial enlargement of the tine portion of the surface-mounted connector. Figures 4A and 4B are cross-sectional views of the tine portion of the surface-mounted connector, Figure 5 is a diagram showing the connector mounted in liquid immersion, and Figures 6A and 6
Figures B, 6b, 6C, 6c, 6D, and 6d represent various other embodiments of the present invention; Figures 7A, 7B, and 7C;
The figures are perspective views showing various embodiments of the present invention, and Figures 8A, 8B, and 8C are connection sectional views showing combinations of surface-mounted and connected connectors of the respective embodiments. DESCRIPTION OF SYMBOLS 1... Connector, 2... Housing, 3... Contact, 5... Tine part, 6... Recessed part, 8...
Board, 9... Wiring pattern, 15... Contact portion.

Claims (1)

[Claims for Utility Model Registration] A connector comprising a housing, a contact portion housed within the housing and having a contact portion that makes contact with a mating connector, and a contact portion that protrudes from the housing and has a tine portion that is soldered to a board, the connector comprising: The contact is integrally formed by punching out a metal plate so that the contact portion and the tine portion are substantially perpendicular to each other, and the sheared surface of the tine portion approximately corresponds to the thickness of the substrate into which the tine portion can be inserted. A recess is formed from the housing side, a mounting surface formed by the sheared surface continuous to the recess is chamfered on at least one of both edges thereof, and a wiring pattern is formed up to the position of the recess. What is claimed is: 1. A connector that can be surface-mounted, and the tine portion can be used for both surface-mounting and liquid immersion mounting.